SB2026052862 - Use-after-free in Linux kernel mediatek jpeg driver
Published: May 28, 2026
Security Bulletin ID
SB2026052862
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use-after-free (CVE-ID: CVE-2026-46011)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to use-after-free in the mtk_jpeg_release() release path when closing the device while queued or running jpeg work is still pending. A local user can close the device during JPEG encode or decode operations to cause a denial of service.
The issue is caused by a race condition between the release path and the workqueue callback.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0498b27a1542021d90269d58347501d4c3ccd84e
- https://git.kernel.org/stable/c/2209fdae5c2f615930c9af1379c1cfca199ec5d8
- https://git.kernel.org/stable/c/26506a30e0e26d612f82a7bf0e395626968a44e6
- https://git.kernel.org/stable/c/34c519feef3e4fcff1078dc8bdb25fbbbd10303f
- https://git.kernel.org/stable/c/e78c39f720679fcf3a2eacd82725ec3ea2648301